Mud screen integrated collector

Abstract

The utility model relates to the field of environmental monitoring and benthos analysis, in particular to a mud screen integrated collector which comprises a grab bucket type mud collector and a screening and washing mesh bag, the grab bucket type mud collector is composed of two grab buckets connected in a hinged mode and a support connected with the two grab buckets respectively, and the screening and washing mesh bag is arranged on the grab bucket type mud collector. The screening and washing net bag is composed of a net structure made of protoplast materials and detachably connected to inner cavities of the two grab buckets, and opening and closing assemblies which are symmetrically arranged are arranged on the inner walls of the two grab buckets correspondingly. According to the bottom mud screening and washing device, the screening and washing mesh bag is connected to the grab bucket, so that bottom mud sampled by the grab bucket can directly enter the screening and washing mesh bag, the problem that in the prior art, bottom mud is scattered in the transferring process, and consequently benthos are omitted is solved, and meanwhile the problem that samples are subjected to cross contamination in the transferring process of the bottom mud is also solved; meanwhile, the screening and washing mesh bag is quickly detached, so that a worker can conveniently and quickly carry out follow-up treatment on the bottom mud in the screening and washing mesh bag, and certain operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring and benthic organism analysis, specifically to a mud-screen integrated collector. Background Technology

[0002] Benthic organisms are an important component of aquatic ecosystems, including benthic microorganisms, small invertebrates, and aquatic insect larvae, playing a crucial role in material cycling, energy flow, and pollutant migration and transformation. The composition, abundance, and diversity of benthic communities can sensitively reflect long-term changes in the aquatic environment and are important indicators for assessing the ecological health of aquatic bodies.

[0003] Currently, the Petersen sampler is commonly used for collecting benthic organisms from natural water body sediments. As a grab-type sampler, it consists of two grabs (metal flaps) that close under gravity. After the flaps open and descend to the bottom, penetrating the sediment, the pull of ropes causes the flaps to close, thus capturing the sediment sample. However, this method typically requires three processes: collection, transfer, and sieving to collect benthic organisms from natural water body sediments. Therefore, traditional collection methods have the following drawbacks:

[0004] 1. During the transfer process, the sediment is very easy to spill, which may cause benthic organisms (such as small crustaceans or larvae) to be missed; in addition, the transfer process may also cause cross-contamination between samples, resulting in a high risk of sample loss.

[0005] 2. Screening and washing require additional screen equipment (such as a scooping net). After the bottom mud is screened and washed, the screen equipment needs to be manually rinsed and cleaned. The operation is cumbersome and time-consuming, and the efficiency of field operations is low.

[0006] 3. Traditional step-by-step operations require manual transfer of collected sediment to a sieve. During this process, fragile organisms (such as broken appendages of aquatic insects) are easily damaged due to tipping or collisions, which disrupts the integrity of the organisms and affects the accuracy of laboratory analysis. Utility Model Content

[0007] This invention provides an integrated mud sieve collector to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A mud collector integrating a mud sieve includes a grab bucket mud collector and a screen bag. The grab bucket mud collector consists of two grab buckets connected by a hinge and a support connected to each of the two grab buckets. The screen bag is made of a mesh structure made of protoplasmic material. The screen bag is detachably connected to the inner cavity of the two grab buckets, and the inner walls of the two grab buckets are respectively provided with symmetrically arranged opening and closing components.

[0010] The screen washing bag has six rims at its open end, with traction posts installed inside two of the rims. Two symmetrically arranged extraction ropes are connected to the surface of each traction post. The ends of the two extraction ropes away from the traction posts extend to the outside of the grab bucket and are located on one side of the support. The two ends of the two traction posts are respectively installed inside the corresponding opening and closing components. The traction posts are detached from the inside of the opening and closing components by the tension of the extraction ropes. The screen washing bag has two positioning posts on its surface corresponding to the open end. The two positioning posts are close to the hinge of the two grab buckets and are detachably connected to the inner wall of the corresponding grab bucket.

[0011] Preferably, the opening and closing assembly includes a fixed clamping plate fixedly connected to the inner wall of the grab bucket, a movable clamping plate rotatably connected to the fixed clamping plate, and a tension spring disposed between the fixed clamping plate and the movable clamping plate. The two ends of the tension spring are respectively hooked onto the corresponding clamping plates, and a baffle is connected to the inner wall of the movable clamping plate. The end of the traction column is disposed between the fixed clamping plate and the movable clamping plate and is located on one side of the baffle.

[0012] Preferably, the opening and closing assembly further includes a rotating shaft that passes through both the fixed clamping plate and the movable clamping plate. One end of the rotating shaft extends to the outside of the grab bucket and is threaded with a nut. The movable clamping plate rotates about the rotating shaft.

[0013] Preferably, the surfaces of the two grabs are respectively provided with symmetrically arranged threaded through holes, and positioning bolts are respectively threaded into the symmetrically arranged threaded through holes. The two ends of the positioning bolts are respectively provided with threaded grooves, and one end of the two positioning bolts is respectively threaded into the corresponding threaded grooves.

[0014] Preferably, the surfaces of the two grabs are respectively provided with strip-shaped openings, and each strip-shaped opening is provided with a locking post on one side, and an elastic band is sleeved on the locking post. One end of the elastic band passes through the inside of the strip-shaped opening and is connected to the surface of the screen washing bag.

[0015] Preferably, the surfaces of the two traction columns are respectively provided with stabilizing grooves, and magnet blocks are respectively provided in the two stabilizing grooves.

[0016] Preferably, the surfaces of the two grabs are respectively provided with sinking grooves, and the top side of each sinking groove is provided with an arc-shaped frame connected to the surface of the grab. The end of the arc-shaped frame away from the surface of the grab is provided with a notch between it and the bottom wall of the sinking groove, and the extraction rope is located on the inner side of the arc-shaped frame.

[0017] Preferably, the four sides of the opening end of the screen washing bag are respectively provided with elastic bands, and one end of the elastic band is close to the traction post, and the other end of the elastic band is close to the positioning post.

[0018] Preferably, the extraction rope extends through the elastic connection of the screen bag, and the two grabs are respectively provided with anti-deviation openings on the side that are close to each other to stabilize the extraction rope, and a gap area is provided on one side of the anti-deviation opening.

[0019] Preferably, a locking mechanism is provided on the outer side of the two elastic bands.

[0020] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0021] In this invention, the sieve and washing mesh bag is connected to the grab bucket, allowing the bottom sediment sampled by the grab bucket to directly enter the sieve and washing mesh bag. This avoids the problem of sediment spillage during the transfer process in the prior art, which leads to the loss of benthic organisms. It also avoids the problem of cross-contamination of samples during the transfer process, reducing the risk of sample loss.

[0022] In this invention, the elastic band on the washing mesh bag is removed from the clamping post, the extraction rope is removed from the arc-shaped frame, and the positioning bolt is rotated so that one end is disengaged from the threaded groove. This allows the washing mesh bag to be completely separated from the grab bucket after collecting sediment samples, facilitating rapid subsequent processing of the sediment in the washing mesh bag and improving work efficiency. At the same time, the integrated detachable connection between the washing mesh bag and the grab bucket eliminates the need to carry additional screen equipment during field operations, saving effort and providing greater convenience.

[0023] In this invention, the screening and washing mesh bag made of protoplasmic material can effectively filter bottom sediment and retain benthic organisms, effectively avoiding the problem of easily damaging fragile organisms during the transfer of existing technologies, ensuring the integrity of the organisms, and ensuring the accuracy of laboratory analysis data. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the open cross-sectional structure of the grab bucket of this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the sieve washing mesh bag of this utility model.

[0027] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0028] Figure 5 This is a schematic diagram of the structure of the sieve washing mesh bag of this utility model.

[0029] Figure 6 for Figure 5 Enlarged structural diagram at point B.

[0030] Figure 7 for Figure 6 A schematic diagram of the structure with the grab bucket removed.

[0031] Figure 8 for Figure 1 Enlarged structural diagram at point C.

[0032] Figure 9 for Figure 1 Enlarged structural diagram at point D.

[0033] Figure 10 This is a schematic diagram of the operation process of this utility model.

[0034] In the diagram: 1. Screening and washing bag; 2. Grab bucket; 3. Support frame; 4. Traction column; 5. Extraction rope; 6. Positioning column; 7. Fixed clamp; 8. Movable clamp; 9. Tension spring; 10. Baffle; 11. Rotating shaft; 12. Nut; 13. Threaded through hole; 14. Positioning bolt; 15. Threaded groove; 16. Strip opening; 17. Clamping post; 18. Elastic band; 19. Magnet block; 20. Sinking trough; 21. Arc frame; 22. Elastic band; 23. Interval area; 24. Locking mechanism. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0037] like Figures 1-10 As shown, this utility model provides an integrated mud and sieve collector, including a grab bucket mud collector and a sieve and washing bag 1. The grab bucket mud collector consists of two grab buckets 2 connected by hinges and a support 3 connected to the two grab buckets 2 respectively. The sieve and washing bag 1 is made of a mesh structure of protoplasmic material. The sieve and washing bag 1 is detachably connected to the inner cavity of the two grab buckets 2, and the inner walls of the two grab buckets 2 are respectively provided with symmetrically arranged opening and closing components. The outer sides of the two elastic bands 22 are provided with locking mechanisms 24. As a publicly disclosed technical structure on existing grab bucket mud collectors, the locking mechanism 24 is mainly used to stably keep the grab buckets 2 open when the two grab buckets 2 are opened, so as to facilitate the grab buckets 2 to grab bottom mud samples.

[0038] The open end of the screen washing bag 1 has six edges, and traction columns 4 are respectively arranged inside two parallel edges. Two symmetrically arranged extraction ropes 5 are connected to the surface of the traction column 4. The ends of the two extraction ropes 5 away from the traction column 4 extend to the outside of the grab bucket 2 and are located on one side of the support 3. The two ends of the two traction columns 4 are respectively arranged in the corresponding opening and closing components. The traction column 4 is disengaged from the inside of the opening and closing components by the pulling force of the extraction ropes 5. The surface of the screen washing bag 1 corresponding to the open end is provided with two positioning columns 6. The two positioning columns 6 are close to the hinge of the two grab buckets 2, and the two positioning columns 6 are detachably connected to the inner wall of the corresponding grab bucket 2.

[0039] Combination Figure 3 As shown, as a further step, elastic bands 22 are respectively provided inside the four sides of the opening end of the screen washing bag 1. One end of the elastic band 22 is close to the traction column 4, and the other end of the elastic band 22 is close to the positioning column 6. Through the design of the elastic band 22, when the traction column 4 is lifted upward by the extraction rope 5, the elastic band 22 can contract, thereby effectively avoiding the problem that the opening end of the screen washing bag 1 is too large and the bottom mud is easily spilled.

[0040] Combination Figure 4 , Figure 6 and Figure 7 As shown, as a further step, the opening and closing assembly includes a fixed clamping plate 7 fixedly connected to the inner wall of the grab bucket 2, a movable clamping plate 8 rotatably connected to the fixed clamping plate 7, and a tension spring 9 disposed between the fixed clamping plate 7 and the movable clamping plate 8. The two ends of the tension spring 9 are respectively hooked onto the corresponding clamping plates, and a baffle 10 is connected to the inner wall of the movable clamping plate 8. The end of the traction column 4 is disposed between the fixed clamping plate 7 and the movable clamping plate 8 and is located on one side of the baffle 10. The opening and closing assembly also includes a rotating shaft 11 that passes through both the fixed clamping plate 7 and the movable clamping plate 8. One end of the rotating shaft 11 extends to the outer side of the grab bucket 2 and is threadedly connected to a nut 12. The movable clamping plate 8 rotates around the rotating shaft 11.

[0041] The fixed clamp 7 and the movable clamp 8 form a V-shape at one end. The tension spring 9 is hooked on the inclined surface at the angle with the end of the movable clamp 8 closer to it, while the tension spring 9 is hooked on the plane of the fixed clamp 7 with the end of the fixed clamp 7 closer to it. Thus, when the traction column 4 is positioned between the fixed clamp 7 and the movable clamp 8, the tension spring 9 can pull the movable clamp 8 to fit against the outer wall of the traction column 4, ensuring the stability of the traction column 4. This, in turn, ensures that the opening of the screen washing bag 1 remains open, preventing the opening of the screen washing bag 1 from moving or closing due to the thrust of the bottom mud when the grab bucket 2 grabs the bottom mud, which would affect the collection of benthic organisms by the screen washing bag 1.

[0042] Combination Figure 6As shown, as a further step, each of the two traction columns 4 has a stabilizing groove on its surface, and each of the two stabilizing grooves contains a magnet 19. Specifically, the design of the magnet 19 allows the two traction columns 4 to adhere to each other when lifted by the extraction rope 5, thereby ensuring the tight sealing of the opening of the screen bag 1 and reducing the spillage of bottom sediment. At the same time, the design of the two magnets 19 also ensures that the traction column 4 is firmly attached to the inner wall of the grab bucket 2 by the magnets 19, avoiding the problem of the opening of the screen bag 1 closing. Thus, the cooperative design of the magnets 19 with the fixed clamp 7 and the movable clamp 8 ensures that the opening of the screen bag 1 is stably in an open state, which is conducive to sampling benthic organisms in the bottom sediment.

[0043] It is worth emphasizing that the grab bucket 2 is made of stainless steel, which may or may not be magnetic. When the grab bucket 2 is weakly magnetic, the magnet 19 can be attracted to the grab bucket 2; conversely, when the grab bucket 2 is not magnetic, the magnet 19 cannot be attracted to the grab bucket 2.

[0044] It should be further emphasized that the grab bucket 2 used in this embodiment has weak magnetism, so the magnet block 19 described herein can be adsorbed onto the inner wall of the grab bucket 2. However, in specific implementation, the grab bucket 2 may not have magnetism, and the absence of magnetism in the grab bucket 2 does not affect the normal implementation of this solution. When the grab bucket 2 is not magnetic, the traction column 4 can be stabilized by the opening and closing assembly, which can prevent the traction column 4 from being pushed by the bottom mud. At the same time, the magnet block 19 has the effect of attracting each other when the two traction columns 4 are lifted, ensuring that the opening end of the screen washing bag 1 is sealed and preventing the bottom mud from spilling.

[0045] Combination Figure 3 and Figure 5 As shown, as a further step, the surfaces of the two grabs 2 are respectively provided with symmetrically arranged threaded through holes 13. The threaded through holes 13 are close to the hinge of the two grabs 2, and the symmetrically arranged threaded through holes 13 are respectively threaded with positioning bolts 14. The two ends of the positioning pins 6 are respectively provided with threaded grooves 15, and one end of the two positioning bolts 14 is respectively threaded into the corresponding threaded grooves 15.

[0046] Specifically, one end of the positioning bolt 14 is connected to a pinch lug, which makes it easy to rotate manually. When the positioning bolt 14 rotates into the inner cavity of the grab bucket 2, the threaded end of the positioning bolt 14 can enter the threaded groove 15 of the positioning post 6 to fix the positioning post 6. This ensures that the part of the screen washing bag 1 corresponding to the open end is stably set, and ensures that the screen washing bag 1 can carry out the sampling of benthic organisms normally.

[0047] It is worth noting that when the positioning bolt 14 rotates outward and one end is completely disengaged from the inside of the threaded groove 15, the positioning bolt 14 can still be threaded into the inside of the threaded through hole 13, thereby ensuring the connection between the positioning bolt 14 and the grab bucket 2 and avoiding the problem of the positioning bolt 14 being easily lost.

[0048] Combination Figure 3 and Figure 8 As shown, as a further step, the surfaces of the two grabs 2 are respectively provided with strip-shaped openings 16, and each strip-shaped opening 16 is provided with a locking post 17 on one side, and an elastic band 18 is fitted on the locking post 17. One end of the elastic band 18 passes through the inside of the strip-shaped opening 16 and is connected to the surface of the screen washing bag 1.

[0049] The elastic band 18, fitted onto the locking post 17, can be manually detached from the post 17. Once detached, the elastic band 18 can be removed through the slot 16, ensuring the screen bag 1 can be removed and easily transferred to a designated location after collecting benthic organisms. When the elastic band 18 is fitted onto the locking post 17, its force keeps the screen bag 1 upright, facilitating the smooth entry of sediment into the bag and preventing the stacking of the screen bags from hindering sediment collection.

[0050] Furthermore, the surface of the washing mesh bag 1 is provided with a connecting area, one end of the elastic band 18 is connected to the connecting area, and the design of the connecting point is to prevent the elastic band 18 from being directly connected to the mesh part of the washing mesh bag 1, thereby preventing the mesh bag from being damaged due to tension.

[0051] Combination Figure 8 As shown, as a further step, each of the two grab buckets 2 has a sinking groove 20 on its surface, and each sinking groove 20 has an arc-shaped frame 21 connected to the surface of the grab bucket 2 at its top. The end of the arc-shaped frame 21 away from the surface of the grab bucket 2 has a notch between it and the inner bottom wall of the sinking groove 20, and the extraction rope 5 is located inside the arc-shaped frame 21. Through the design of the sinking grooves 20 and the arc-shaped frame 21, the extraction rope 5 can be manually removed through the notch, thus facilitating the separation of the screening bag 1 from the grab bucket 2 and completing the transfer of benthic organisms after collection.

[0052] Combination Figure 9As shown, as a further step, the extraction rope 5 is movably connected through the elastic connection of the screen washing bag 1, and the two grabs 2 are respectively provided with anti-deviation openings on the side close to each other to stabilize the extraction rope 5. An interval area 23 is provided on one side of the anti-deviation opening. Through the design of the anti-deviation opening, the extraction rope 5 can always be kept within the anti-deviation opening when manually pulled, ensuring the stability of the extraction rope 5 during the movement process, so that the traction column 4 can be stably driven and lifted, ensuring the synchronous lifting of the opening end of the screen washing bag 1 and the adsorption and fixation of the magnet block 19 after lifting. The design of the interval area 23 allows the extraction rope 5 to be removed through the interval area 23. It should be noted that when the screen washing bag 1 needs to be removed, the two grabs 2 need to be in the open state. In this way, when the two grabs 2 are open, the screen washing bag 1 can be taken out from the inner cavity of the grabs 2, and at the same time, the extraction rope 5 is removed through the interval area 23.

[0053] Combination Figure 3 As shown, the screen washing bag 1 is provided with an elastic connecting part corresponding to the open end. The elastic connecting part is made of wear-resistant material, which can ensure that the extraction rope 5 will not damage the screen washing bag 1 during the pulling process.

[0054] As a further step, the two positioning posts 6 are located on both sides of the elastic connecting part. When the two grabs 2 are opened, the elastic connecting part on the screen washing bag 1 can ensure the integrity of the screen washing bag 1 by means of its elastic force, and avoid damage.

[0055] Working principle and usage process of this utility model:

[0056] Before use, the screen washing bag 1 must be installed in the inner cavity of the grab bucket 2. The installation process is as follows: the elastic band 18 on the screen washing bag 1 is passed through the strip opening 16 to the outside of the grab bucket 2 and simultaneously fitted onto the locking post 17; then the threaded groove 15 on the positioning post 6 is aligned with the positioning bolt 14, so that the positioning bolt 14 can rotate and enter the threaded groove 15, thereby fixing the positioning post 6; then, the movable clamp 8 is opened manually, so that the two ends of the traction post 4 are placed in the corresponding opening and closing components. During this process, the magnet 19 is attracted to the inner wall of the grab bucket 2; finally, the extraction rope 5 is placed in the anti-deviation opening between the two grab buckets 2 and simultaneously placed inside the arc frame 21, so that the extraction rope 5 can drive the traction post 4 to move when it is extracted.

[0057] Combination Figure 10As shown, in use, the grab bucket mud sampler is a publicly available technology. The user can open the two grab buckets 2 and use the locking mechanism 24 to ensure that the grab buckets 2 are in the open state when descending in the water. Thus, when the grab buckets 2 descend to the bottom of the water and insert into the bottom mud, the user can use the existing rope technology to close the two grab buckets 2, so that the collected bottom mud sample can enter the inner cavity of the grab bucket 2 and at the same time enter the inside of the screen bag 1.

[0058] Subsequently, after the grab-type mud sampler is lifted out of the water, when it is necessary to separate the collected sample from the screen bag 1 from the grab bucket 2, the extraction rope 5 is first pulled upwards. When the extraction rope 5 pulls the traction column 4, the force on the traction column 4 causes the movable clamp 8 to open, thereby ensuring that the traction column 4 is disengaged from the inner side of the fixed clamp 7 and the movable clamp 8. As the extraction rope 5 continues to be pulled, the two traction columns 4 can move closer to each other, causing the two magnet blocks 19 to attract each other, ensuring the closure of the opening end of the screen bag 1. Then, after the extraction rope 5 is released, the traction column 4 at the opening end of the screen bag 1 can descend under the action of the bottom mud. Then, the operator removes the elastic band 18 from the clamp 17, removes the extraction rope 5 from the arc frame 21, and rotates the positioning bolt 14 so that one end is disengaged from the threaded groove 15, completing the separation of the screen bag 1 from the grab bucket 2 at all connection points.

[0059] Finally, when the user pulls the extraction rope 5 upwards again, the mutually adsorbed traction columns 4 are raised to the two positioning columns 6. During this process, the four edges of the opening end of the screen washing bag 1 are contracted by the elastic band 22 to prevent the bottom mud from spilling. At the same time, the grab bucket 2 is opened so that the screen washing bag 1 for collecting bottom mud samples can be separated from the grab bucket 2. Furthermore, the extraction rope 5 is used to remove it through the interval area 23, completing the separation of the screen washing bag 1 from the grab bucket 2. This facilitates subsequent work on the bottom mud in the screen washing bag 1, such as transfer and screening.

[0060] During the transfer process, the opening of the screening and washing net bag 1 is from bottom to top, which allows benthic organisms to be located in the net bags hanging down on both sides of the screening and washing net bag 1, reducing spillage. Furthermore, since the screening and washing net bag 1 is directly used in conjunction with the grab bucket 2 for sampling, and the screening and washing net bag 1 used to collect benthic organisms is directly transferred after sampling, the problem of cross-contamination caused by the grab bucket 2 sampling and transfer to the screening equipment is avoided. At the same time, the problem of easily damaging fragile organisms during the transfer process of the existing technology is also avoided, ensuring the integrity of the organisms.

[0061] During the sieving process, since the sieving bag 1 is located inside the grab bucket 2, there is no need to carry additional sieving equipment. This reduces the need for transfer and allows for sieving only the removed sieving bag 1. The sieving bag 1, made of protoplasmic material, effectively filters sediment while retaining benthic organisms. The operation is simple and significantly improves sampling efficiency in the field. Furthermore, by eliminating the transfer process when sieving sediment samples using the protoplasmic material sieving bag 1, the integrity of the fragile organisms after sieving is effectively preserved, ensuring the accuracy of laboratory analysis data.

[0062] It is worth noting that the sieve bag 1 in this solution can be a disposable product, and no cleaning is required after each sample collection; and due to its size and material, it can be placed in a small container box or bag for portable carrying, which is more convenient than carrying a scoop net.

[0063] In this invention, the term "plural" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0065] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mud sieve integrated collector, characterized in that, The device includes a grab bucket mud sampler and a screen bag (1). The grab bucket mud sampler consists of two grab buckets (2) connected by a hinge and a support (3) connected to the two grab buckets (2) respectively. The screen bag (1) is made of a mesh structure made of protoplasmic material. The screen bag (1) is detachably connected to the inner cavity of the two grab buckets (2), and the inner walls of the two grab buckets (2) are respectively provided with symmetrically arranged opening and closing components. The screen washing bag (1) has six rims at its open end, with traction posts (4) installed inside two of the rims. Two symmetrically arranged extraction ropes (5) are connected to the surface of the traction posts (4). The ends of the two extraction ropes (5) away from the traction posts (4) extend to the outside of the grab bucket (2) and are located on one side of the support (3). The two ends of the two traction posts (4) are respectively installed in the corresponding opening and closing components. The traction posts (4) are released from the inside of the opening and closing components by the pulling force of the extraction ropes (5). The screen washing bag (1) has two positioning posts (6) on the surface corresponding to the open end. The two positioning posts (6) are close to the hinge of the two grab buckets (2) and the two positioning posts (6) are detachably connected to the inner wall of the corresponding grab bucket (2).

2. The mud sieve integrated collector according to claim 1, characterized in that, The opening and closing assembly includes a fixed clamping plate (7) fixedly connected to the inner wall of the grab bucket (2), a movable clamping plate (8) rotatably connected to the fixed clamping plate (7), and a tension spring (9) disposed between the fixed clamping plate (7) and the movable clamping plate (8). The two ends of the tension spring (9) are respectively hooked onto the corresponding clamping plates, and a baffle (10) is connected to the inner wall of the movable clamping plate (8). The end of the traction column (4) is disposed between the fixed clamping plate (7) and the movable clamping plate (8) and is located on one side of the baffle (10).

3. The integrated mud sieve collector according to claim 2, characterized in that, The opening and closing assembly also includes a rotating shaft (11) that passes through both the fixed clamping plate (7) and the movable clamping plate (8). One end of the rotating shaft (11) extends to the outside of the grab bucket (2) and is threaded with a nut (12). The movable clamping plate (8) rotates around the rotating shaft (11).

4. The mud sieve integrated collector according to claim 1, characterized in that, The surfaces of the two grabs (2) are respectively provided with symmetrically arranged threaded through holes (13), and positioning bolts (14) are respectively threaded into the symmetrically arranged threaded through holes (13). The two ends of the positioning pin (6) are respectively provided with threaded grooves (15), and one end of the two positioning bolts (14) is respectively threaded into the corresponding threaded grooves (15).

5. The integrated mud screen collector according to claim 1, characterized in that, The surfaces of the two grabs (2) are respectively provided with strip-shaped openings (16), and each strip-shaped opening (16) is provided with a locking post (17) on one side, and an elastic band (18) is sleeved on the locking post (17). One end of the elastic band (18) passes through the inside of the strip-shaped opening (16) and is connected to the surface of the screen washing bag (1).

6. The mud sieve integrated collector according to claim 1, characterized in that, The surfaces of the two traction columns (4) are respectively provided with stabilizing grooves, and magnet blocks (19) are respectively provided in the two stabilizing grooves.

7. The integrated mud screen collector according to claim 1, characterized in that, The surfaces of the two grabs (2) are respectively provided with sinking grooves (20), and the top side of each sinking groove (20) is provided with an arc-shaped frame (21) connected to the surface of the grab (2). The end of the arc-shaped frame (21) away from the surface of the grab (2) is provided with a gap between it and the bottom wall of the sinking groove (20), and the extraction rope (5) is located on the inner side of the arc-shaped frame (21).

8. The mud sieve integrated collector according to claim 1, characterized in that, The screen washing bag (1) has elastic bands (22) inside the four edges of the opening end, with one end of the elastic band (22) close to the traction column (4) and the other end of the elastic band (22) close to the positioning column (6).

9. The mud sieve integrated collector according to claim 1, characterized in that, The extraction rope (5) is movably connected through the elastic connection of the screen washing bag (1), and the two grabs (2) are respectively provided with anti-deviation openings on the side that are close to each other to stabilize the extraction rope (5), and an interval area (23) is provided on one side of the anti-deviation opening.

10. A mud sieve integrated collector according to claim 8, characterized in that, A locking mechanism (24) is provided on the outer side of the two elastic bands (22).

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